| title | media type | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|---|
| Botany: 49 Science Fair Projects | Paperback | 978-0-07-157522-5 | 1989 | G. Daniel Keen |
| Botany: Forty-Nine More Science Air Projects | Hardcover | 978-0-07-156655-1 | 1990 | " |
| Botany: Forty-Nine More Science Air Projects | Paperback | 978-0-07-156666-7 | 1990 | " |
| Botany: Forty None Science Fair Projects | Hardcover | 978-0-07-157517-1 | 1989 | |
| Computers: 49 Science Fair Projects | Paperback | 978-0-07-155261-5 | 1990 | G. Daniel Keen |
| Earth Science 49 Science Fair | Hardcover | 978-0-07-155083-3 | 1990 | R. Keen Bonnet · G. Daniel Keen |
| Environmental Science: 49 Projects | Paperback | 978-0-07-104120-1 | 1995 | |
| Mensa Science Experiments | " | 978-1-4027-1642-3 | Dan Keen | |
L B · R. B · R. L · Robert B. · Robert Bonnet · Robert L.